mysql2sqlite
Converts MySQL dump to SQLite3 compatible dump (including MySQL KEY xxxxx statements from the CREATE block).
Usage
-
Dump MySQL DB
mysqldump --skip-extended-insert --compact [options]... DB_name > dump_mysql.sql # or #mysqldump --no-data -u root -pmyPassword [options]... DB_name > dump_mysql.sql -
Convert the dump to SQLite3 DB
./mysql2sqlite dump_mysql.sql, sqlite3 mysqlite3.db
(both mysql2sqlite and sqlite3 might write something to stdout and stderr - e.g. memory coming from PRAGMA journal_mode = MEMORY; is not harmful)
Development
The script is written in awk (tested with gawk, but should work with original awk, and the lightning fast mawk) and shall be fully POSIX compliant.
It's originally based on the newest fork (https://gist.github.com/bign8/9055981/05e65fd90c469c5eaa730823910c0c5f9de40ab4) of the original mysql2sqlite.sh (https://gist.github.com/esperlu/943776/be469f0a0ab8962350f3c5ebe8459218b915f817) with the following patches:
- fix the non-standard
COMMENTfield statement removal - ignore
CREATE DATABASEstatements (USEstatements were already ignored) - add support for multiple-record
INSERT INTO VALUES - revise support for lower-case SQL statements
- fix
AUTO_INCREMENThandling - trim hexadecimal values longer than 16 characters and issue a warning about it
- add identifier case sensitivity warning in case
IF NOT EXISTSorTEMPORARYhas been detected (on unix sqlite3 treats temporary table nameFILESthe same asfiles; in other words, sqlite3 doesn't issue any warning about cross-collisions betweenTABLEandTEMPORARY TABLEidentifiers) - replace
COLLATE xxx_xxxx_xxstatements withCOLLATE BINARY(https://gist.github.com/4levels/0d5da65bf9d70479fbe3/d0ac3d295dc5e2f72411ad06c07a22931368a1b7) - handle
CONSTRAINT FOREIGN KEY(https://gist.github.com/BastienDurel/7f413d13d7b858aef31c/922be110d011b9da340ae545372214b597ad7b84)
Feel free to contribute (preferably by issuing a pull request)!
License
MIT
History
- @esperlu created initial version in 2011 as gist on GitHub
- many different contributors forked the gist and made wildly varying changes, because @esperlu stopped working on it and didn't respond
- @dumblob took over in Aug 2015 and applied the most important patches from all the forks as well as many his own patches tested on Drupal DB
- @dumblob added the MIT license under assumption, that the original gist was released into public domain, because despite significant changes, it wasn't clean room engineering.
- 2016-05-11 17:32 UTC+2 @esperlu declared MIT as a fitting license (also retrospectively) and the original gist as deprecated.